During the weeks between the 17th of Tammuz and Tisha bAv, the Lubavitcher Rebbe instructed all to learn the laws pertaining to the Beis Hamikdash
Top comments
On Parshas Tazria-Metzora 5751 the Rebbe taught that the fastest way to bring Moshiach is through learning inyonei Geulah uMoshiach.
Rabbi Gershon Avtzon, founder and Rosh Yeshiva of Yeshivas Lubavitch Cincinnati, presents shiurim on the topic of Moshiach and Geulah encompassing many aspects of the Torah